JPH01165243A - Inter-network connection device - Google Patents

Abstract

PURPOSE:To effectively use the line connection part of a public network or a line switching network and to effectively and rapidly perform inter-network connection by performing communication control by selecting a terminal connected to a packet switching network by the identifier of the terminal at an outgoing side. CONSTITUTION:The line connection part 6a detects an incoming call from the public network or the line switching network 2, and informs the incoming to a communication control part 7. The communication control part 7 accepts the incoming, and establishes a call between the terminal 1a via the line connection part 6a and the public network or the line switching network 2. Here, the communication control part 7 receives the identifiers ID of the terminals (1a-1n) by a decided communication procedure, The identifier ID is compared with the identifier ID stored in an ID storage part 13 in advance, and furthermore, the logical number of a terminal address with respect to either the terminals (5a-5m) connected to the packet switching network 4 corresponding to the identifier ID is detected from a terminal address storage part 8, and delivered to an inter-network connection control part 9. In such a way, communication between the terminal 1a and the terminal 5a is performed by a protocol conversion part 10.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a network for mutual communication between a terminal connected to a public network or a circuit switched network and a terminal connected to a packet switched network. This relates to an interconnection device.

[Conventional technology]

FIG. 2 is a system configuration diagram including a conventional inter-network connection device disclosed in, for example, Japanese Unexamined Patent Publication No. 62-130049, (2) is a public network or circuit switched network, (1a) to (I)
n) is a terminal connected to a public network or circuit switched network (2), (4) is a packet switched network, (5a) to (5m)
is a terminal connected to the packet switching network (4), (3
) is an inter-network connection device that connects the terminals (1a) to (1n) and (5a) to (5m).

Figure 3 is a block diagram of the network connection device (3).
In the figure, (6a) to (6k) are public networks or circuit switching! (2) and the line connection unit (with incoming call function) that performs interface processing; (7) is the terminal (1a) to (1);
(11) is a communication control unit that controls communication with the terminals (5a) to (5m) via the packet switching network (4); (12) is the packet switching unit that controls communication with the terminals (5a) to (5m);
(4) A line connection unit that performs interface processing with (
lO) between communication control units (7) and (11),
(8) is a protocol conversion unit that performs protocol exchange; (8) is a terminal address storage unit that is associated with the line connection units (6a) to (6k) and stores the addresses of the terminals (5a) to (5m); (9) is a public network or circuit switched network (
2) and the packet switching network (4).

Next, the operation of the conventional inter-network connection device will be explained based on the above configuration. When a terminal (1a) connected to a public network or a circuit-switched network (2) communicates with a terminal (5a) connected to a packet-switched network (4), the terminal (1a) that is the caller ) is a line connection part (6
a) Make a dial call. This line connection part (6a) is connected to a public network or a line exchange! When it detects an incoming call from (2), it notifies the communication control unit (7) of this incoming call. Upon receiving this notification, the communication control unit (7) passes the logical number unique to the line connection unit (6a) to the network connection control unit (9) in response to the incoming call detection notification from the line connection unit (6a). The network connection control unit (9) searches the terminal address storage unit (8) based on the logical number of the line connection unit (6a), retrieves the terminal address of the corresponding connection destination (the address of the terminal (5a)), and retrieves the terminal address (address of the terminal (5a)). 5a), a call request is sent via packet exchange via the communication control unit (11) and the line connection unit (12).
Send to W(4). In response to the connection completion notification from the packet switching network (4), the communication control unit (7) connects the line connection unit (6a).
Accepts incoming calls. This allows data transfer between the terminal (la) connected to the public network or circuit switched network (2) and the terminal (5a) connected to the packet switched network (4). In this data transfer enabled state, the protocol converter (10) converts the terminal (1a
) and the terminal (5a).

[Problem that the invention seeks to solve]

As described above, in conventional network connection devices, the addresses of terminals connected to the packet switching network are fixedly assigned to the line connections, so that the addresses of terminals connected to the public network or circuit switching network are fixedly assigned. If the terminals connected to a specific packet switching network are concentrated, even if there is a line connection section of the public network or circuit switching network of the inter-network connection device, the terminals connected to the specific packet switching network will be There was a problem that communication was not possible.

This invention was made to solve the above-mentioned problems, and if there is a line connection part of a public network or a circuit-switched network, it can be used to connect to any registered packet-switched network. The purpose is to obtain an inter-network connection device that can also communicate with connected terminals.

[Means for solving problems]

The inter-network connection device according to the present invention is provided with a terminal ID storage section that stores identifiers (IDs) of a plurality of terminals receiving calls from a public network or a circuit switched network, and stores a terminal address storage section for each identifier (ID). It is designed to associate terminal addresses.

[Effect]

The network connection device in this invention first receives an incoming call from a public network or circuit switched network, and the communication control unit checks the identifier (ID) between the terminal and the terminal, and connects to the corresponding packet switched network. Connection processing to the packet switching network is performed based on the terminal address of the terminal.

(Example) Hereinafter, an example of the present invention will be described based on FIG. 1. The system configuration is the same as that shown in FIG. 2, except for the configuration of the network connection device.

In the figure, the network connection device according to this embodiment includes the circuit connection sections (6a) to (6k), the terminal address storage section (8), the network connection control section (9), and the protocol conversion section (6k) of the conventional device. 10), communication control section (11), line connection section (12)
) have the same configuration, and the above circuit connection parts (6a) to (6k)
An identifier (ID) stored in a terminal ID storage section (13) to be described later when an incoming call from a terminal (la) to (1n) corresponding to A communication control unit (7) detects the terminal address stored in the terminal address storage unit (8) corresponding to the identifier (ID) with which the comparison result matches and sends it to the network connection control unit (9). and a terminal ID storage unit (13) that stores in advance the identifiers (ID) of each terminal (1a) to (in) to be compared in the communication control unit (7).

Next, the operation of the apparatus of this embodiment based on the above configuration will be explained. When the terminal (la) communicates with the terminal (5a), the caller must connect one of the line connections (for example, (
6a)). The line connection part (6a) detects an incoming call from the public network or the line switched network (2),
This is notified to the communication control unit (7). The communication control unit (7) accepts this incoming call and sends it to the line connection unit (6a).
), the terminal (
1a). Here, the communication control unit (7
) is a defined communication procedure (for example, 5DLC XID%B
SC ID ENQ.

ID ACK, etc.) to receive the identifiers (IDs) of the terminals (la) to (in). This identifier (ID) is used as the terminal ID.
The identifiers (ID) stored in advance in the storage unit (13) are compared, and any of the terminals (5a) to 1 connected to the packet switching network (4) corresponding to this identifier (ID) is compared.
(5m) Detects the logical number of the terminal address from the terminal address storage section (8) and inter-network connection control section (9)
give it to

As a result, a call is established between the packet switching network (4) and the terminal (5a) as in the conventional example, and a call is established between the terminal (1a) and the terminal (5a).
5a) communicates with each other using the protocol converter (10). In addition, when receiving the above terminal ID, use this identifier (ID).
If the ID does not exist in the terminal ID storage section (13),
The communication control unit (7) and the line connection unit (6a) disconnect the call with the public network or the line-switched network (2) without performing connection processing to the packet-switched network (4).

(Effects of the Invention) As described above, according to the present invention, when a call is received from a public network or a circuit switched network, the identifier (I
D) Since we have adopted a configuration in which communication control is performed by selecting terminals connected to the packet-switched network, the line connection section of the public network or circuit-switched network can be used effectively, making inter-network connections effective and effective. This has the effect of being quick.

Furthermore, it has the effect of making system construction easier.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an inter-network connection device according to an embodiment of the present invention, FIG. 2 is a system configuration diagram applied to the embodiment shown in FIG. 1, and FIG. 3 is a block diagram of a conventional inter-network connection device. It is a block diagram. (1a) to (1n), (5a) to (5m) are terminals, (2
) is a public network or circuit switched network, (3) is an inter-network connection device, (4) is a packet switched network, (6
a) ~(6k), (12) is the line connection part, (7)
, (11) is a communication control section, (8) is a terminal address storage section, (9) is an inter-network connection control section, (10) is a protocol conversion section, and (13) is a terminal ID storage section. Note that the same reference numerals in each figure indicate the same or corresponding parts. Agent Masuo Oiwa

Claims (1)

[Claims] a line connection means for detecting incoming calls from a plurality of terminals via a public network or a circuit switched network; a terminal ID storage means for storing in advance a plurality of identifiers (IDs) for the plurality of terminals;
Terminal address storage means stores an address of a terminal connected to a packet switching network that is associated in advance with the identifier (ID), and detects an incoming call from the line connection means. ),
a first connection control means for detecting, from the terminal address storage means, a terminal address corresponding to the identifier (ID) with which the comparison result matches; A second connection control means extracts an address from the terminal address storage unit and controls the connection to the packet switching network, and the first connection control means connects the terminal to the public network or the circuit switching network in a state in which data transfer is enabled. An inter-network connection device comprising: a terminal connected to the packet switching network; and a protocol conversion means for converting a protocol between a terminal connected to the packet switching network.